当济南国产精品伦一区二区三级视频罩在运送空气进程巾冷热量损耗大又请求空气温度坚持稳定,或许要避免风管穿越房间时对室内空气参数形成影响或排出的气体在排入大气前可能披冷却而形成凝聚物堵塞或腐蚀风管及螺旋风管外表可能有结露时,需对风管进行保温.一般保温层有防腐层保温层、防潮层和保护层四层结构.

　　When the smoke hood in Ji'nan shipping air cold towel process high heat loss and requests for air temperature to maintain the stability, perhaps to avoid the formation of impact on the indoor air parameters of the wind pipe across the room or when the exhaust gas discharged into the atmosphere in front with cooling and the formation of condensate blockage or corrosion of the air duct and spiral duct appearance may have condensation. In need of insulation of air duct. The general insulation anti-corrosion insulation layer, moisture-proof layer and protective layer four layer structure.

　　通风99无码熟妇丰满人妻啪啪断面形状有圆形和矩形两种.在相同断面积条件下螺旋风管因周长短而经济,在相同风量下矩形风管比螺旋风管压力丢失要大因而般状况下都选用圆形风管,只要有时为了便于和建筑配台才选用矩行断面.

　　The ventilation pipe section shape is circular and rectangular two. In the same fault because of perimeter short and most economical spiral duct area, in the same air flow rectangular duct like conditions and lost to use circular duct than spiral wind pressure, and sometimes as long as in order to facilitate the building with Taiwan was selected for the moment section.

　　由矩形风管压力丢失计算式可得出:矩形风管的压力丢失随风管宽高比增大而相应增大.因而.设汁时应使其宽高比接近于l.当然有时候要看现场状况.

　　The pressure loss formula of the rectangular air duct shows that the pressure loss of the rectangular duct increases with the increase of the aspect ratio of the duct, so the width ratio of the rectangular duct should be close to that of L., of course, depending on the site conditions

　　通风、空气调节体系的风管,宜选用螺旋风管.长短比不大4的矩形截面,其大长短边之比不该超越1O,风管的截面尺度,宜按现行标准通风与空气调节工种施工质量验收规范的规定履行.

　　Duct ventilation, air conditioning system, should use the spiral duct. The length ratio of 4 small rectangular section, the maximum length of edge ratio should not exceed 1O, cross section scale wind tube, should according to the current standard of ventilation and air conditioning provisions of national code for acceptance of construction quality of work performance.

　　国产精品伦一区二区三级视频99无码熟妇丰满人妻啪啪因为要穿过修建梁而使99无码熟妇丰满人妻啪啪通风截面积变小,截面上阻力增加,构成气流不晓畅，国产精品伦一区二区三级视频99无码熟妇丰满人妻啪啪在穿过修建梁或逃避其它设备99无码熟妇丰满人妻啪啪时,国产精品伦一区二区三级视频99无码熟妇丰满人妻啪啪中的一段会低于全体国产精品伦一区二区三级视频99无码熟妇丰满人妻啪啪平面.在运用一段时间后,因为油水混合物会积聚在较低的那段国产精品伦一区二区三级视频99无码熟妇丰满人妻啪啪中,直接影响国产精品伦一区二区三级视频晓畅.

　　The exhaust pipe passes through the beam because building ventilation pipe cross-sectional area smaller, increasing section resistance, which don't know air exhaust pipe in the construction, through the beam or escape from other equipment pipeline, an exhaust pipe will be lower than the plane of the exhaust pipe. In use after a period of time, because the mixture of oil accumulation in the exhaust pipe in the low smoke, directly affect the smooth.

　　本文由济南国产精品伦一区二区三级视频罩友情奉献.更多有关的知识请点击:http://www.yhjjlp.com/领导边摸边吃奶边做爽在线观看将用的技术.真诚的态度.为您提供为的服务.更多有关的知识领导边摸边吃奶边做爽在线观看将会陆续向大家奉献.敬请期待.

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